// Copyright (C) 2017 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package host

import (
	"context"
	"sync"

	"github.com/google/gapid/core/os/device"
)

var (
	host     device.Instance
	hostOnce sync.Once
)

// Instance returns the device information for the host computer running the
// code.
func Instance(ctx context.Context) *device.Instance {
	hostOnce.Do(func() { host = getHostDevice() })
	return &host
}
